SAN DIEGO — Giants manager Felipe Alou continues to question whether Marquis Grissom is tired, but the veteran outfielder insists the only fatigue he feels is over constant talk of the subject.

“The tired thing, I’m tired of hearing it,” said Grissom, 37. “I came into this season prepared to play in 162 games. I always do. If he takes me out of the lineup because I’m not hitting, I understand that. We’ve got other guys who need to play.

“Maybe he sees something I don’t see, and if that’s the case, I can’t fault him for that. I don’t feel tired, though.”

Before Wednesday’s game, Alou singled out Grissom and Edgardo Alfonzo as second-half keys to the offense. He pointed out the contributions they made after the All-Star break last year, but both players are in slumps and Alou wasn’t sure if he could expect the same surge this time.

“I know Grip (Grissom) was a little tired at the end and in the playoffs, even if he doesn’t believe it,” Alou said. “He hit 20 home runs and .300 for the year. Is he going to repeat that? We are in the second half now. So the key is to get Grissom going and Alfonzo going. If that happens, we really don’t need anything.

“We have three days (before the non-waiver trade deadline) to make an evaluation and prediction.”

The Giants are looking at a number of outfield possibilities, including Arizona’s Steve Finley, and Grissom said he wouldn’t oppose any deal that could help the club. A respected veteran, he said his only goal is to be a good teammate and help win a World Series.

Trainer Stan Conte said Grissom’s hamstring was “a concern” about six weeks ago, but he has recovered well.

NOT GA-GA OVER UGUETH: The Giants and Tigers are not close to a deal that would send right-hander Ugueth Urbina to San Francisco, though the two sides haven’t broken off talks completely. Giants GM Brian Sabean scouted Urbina personally in Cleveland on Tuesday night and sources said he was not overly impressed. But if Detroit’s asking price should fall in the next 72 hours, the teams still could strike a deal.

Alou noted that Urbina has walked 27 in 40 innings this season.

ONE-HOPPERS: One rumor ripping its way across the Internet had the Giants acquiring Carlos Beltran in a three-team trade that would send Yorvit Torrealba to the Marlins and pitching prospect Matt Cain to the Astros. Baseball officials said there was no truth to the rumor. … Right-hander Jesse Foppert is scheduled to throw 30-35 pitches in a rehab start for Class A San Jose tonight. … Second baseman David Doster’s hitting streak ended at 32 when he went hitless in four at-bats Tuesday for Triple-A Fresno.